For years, developers decried the tight fist Sun kept on the development of its office suite, preventing the hacker culture from improving its software. So now that LibreOffice is, well, free, it's not surprising to see one ambitious hacker has developed a mechanism for theming it. Let's have a round of applause for Jan Holesovsky, whose patch in the upcoming 4.0 edition of LibreOffice allows you to style LibreOffice using FireFox Personae. Holesovsky's blog is full of other interesting UI changes made to LibreOffice, proof perhaps that letting hackers hack is the best way to keep your project improving.